tda5145ts-c1 NXP Semiconductors, tda5145ts-c1 Datasheet - Page 4

• Manufacturer Part Number: tda5145ts-c1
• Description: Brushless Dc Motor Drive Circuit
• Manufacturer: NXP Semiconductors

Philips Semiconductors
PINNING
1998 Oct 27
SYMBOL
MOT1
MOT1
TEST
MOT2
MOT2
VMOT
VMOT
BRAKE
DIR
GND2
V
CAP-CD
CAP-DC
CAP-ST
CAP-TI
n.c.
n.c.
RESET
n.c.
MOT3
MOT3
MOT0
GND1
GND1
P
Brushless DC motor drive circuit
PIN
10
12
13
14
15
16
17
18
19
20
21
22
23
24
11
1
2
3
4
5
6
7
8
9
driver output 1
driver output 1
test input/output
driver output 2
driver output 2
input voltage for the output driver
stages
input voltage for the output driver
stages
brake input; this pin may not be left
floating, a LOW-level voltage must
be applied to disable this function
direction control input; this pin may
not be left floating
ground supply return for control
circuits
supply voltage
external capacitor connection for
adaptive communication delay
timing
external capacitor connection for
adaptive communication delay
timing copy
external capacitor connection for
start-up oscillator
external capacitor connection for
timing
not connected
not connected
reset input; this pin may not be left
floating, a LOW-level voltage must
be applied to disable this function
not connected
driver output 3
driver output 3
input from the star point of the motor
coils
ground (0 V) motor supply return for
output stages
ground (0 V) motor supply return for
output stages
DESCRIPTION
4
FUNCTIONAL DESCRIPTION
The TDA5145TS offers a sensorless 3-phase motor drive
function. It is unique in its combination of sensorless motor
drive and full-wave drive. The TDA5145TS offers
protected outputs capable of handling high currents and
can be used with star or delta connected motors. It can
easily be adapted for different motors and applications.
The TDA5145TS offers the following features:
handbook, halfpage
Sensorless commutation by using the motor EMF
Built-in start-up circuit
Optimum commutation, independent of motor type or
motor loading
Built-in flyback diodes
Three phase full-wave drive
High output current (2.0 A)
Outputs protected by current limiting and thermal
protection of each output transistor
Low current consumption by adaptive base-drive
Soft-switching pulse output for low radiation
Direction of rotation controlled by one pin
Brake function.
CAP-CD
BRAKE
VMOT
VMOT
MOT1
MOT1
MOT2
MOT2
GND2
TEST
DIR
V P
Fig.2 Pin configuration.
10
11
12
1
2
3
4
5
6
7
8
9
TDA5145TS
MGR392
15
14
13
24
23
22
21
20
19
18
17
16
TDA5145TS
Product specification
GND1
GND1
MOT0
MOT3
MOT3
n.c.
RESET
n.c.
n.c.
CAP-TI
CAP-ST
CAP-DC